Cigarette making machine



Feb. 28, 1933. w. a. MOLINS CIGARETTE MAKING MACHINE Filed Oct. 9, 1931I gw'uanto'o Patented Feb. 28, 1933 UNITED STATES WALTER. EVERETTMOLINS, or ennon, ENGLAND cIeAEETTE MAKING MACHINE Application filedOctober a, 1931, Serial No. 557,937.

This invention relates to apparatus for applying adhesive to thecigarette rod produced on conventional cigarette machines of thecontinuous rod type and has forits object the provision of means of thischaracter which will ensure faster and more efiicient pasting of thecigarette'paper.

The adhesive applying apparatus hitherto fused has'deposited theadhesive along one edge of the paper cigarette tube in such manner thatthe greater amount of adhesive is present at the extreme edge of thepaper, the adhesive layer taperingcfl in thickness toward the centralportion of the paper. Thus,

when the overlapping edge of the paper is turned down on the oppositeedge, a considerable portion ofthe adhesive is squeezed out from betweenthe contacting edges and the folder which turns down the overlappingedge and the heater for drying the adhesive becomesoiled with paste andfrequent stoppageof the machine and a defective cigarette rod result.

It is therefore an object of this invention so to apply the adhesive tothe edge portion of the continuous paper blank that the greaterthickness of the adhesive, layer is removed from the outer edge of thepaper, the

' thickness of this layerttapering off toward I the extreme edge. Bythis expedient a greater marginof error in all pastin adjustments maybe'allowed-and a surplus o paste may be employed, this surplus tendingto spread over the inner surface of, the paper, the amount exuding fromthe overlapping edges of the 7 paper being very materially reduced.

' Further. objects and features of the invention will be apparent fromthe following specification taken in connection with theaccompanyingdrawing, in which:

Figure 1 is an elevational view of adhesive applying apparatus embodyingthe principles of the present invention;

Figure 2 is a plan view of theapparatus shown inFigure 1;

Figure. is an enlarged sectional view of the edge of a paper tube towhich adhesive has been applied in accordance with the prin- V ciples ofthepresent invention; i

Figure 4 is a similar view illustrating the marily ofa paste containerindicated generwardly through a discharge opening 20 at the mannerinwhich adhesivehas been applied heretofore; and V p Figure 5 is a viewin elevation of a modification ofthe arrangement shown in Figure 1.

Referring now more specifically/to the drawing,in which one typerofadhesive applying mechanismis disclosed for the purpose of illustratingthe invention, it 'will be observedgthat.thismechanism consists priallyat 10, a main paste wheel 12 andalsec ondary paste wheel 11 1 11 fortransferring the paste from the container 'to-the main paste wheel s Thecontainer 10 comprises. a casing 15 preferably closed at its upper endby a cap 16 and provided with a plunger 17 reciprocable within: thecasing to force the'paste downlower end of the container in a manner.which will be well understood; The secondary paste wheel 14 is mountedforrotation in the direction indicated by the arrow in Figure '1 on ashaft 22 and the main "paste wheel 12 is mounted on a shaft l23an d isrotated in the direction of the arrow shown in Figure 2. 1 Theseshaftsmay'fbejdriven in any conventional manner from the cigarettemachine proper f The paste delivered from the container 10 through'theaperture 20 is deposited in an annulangroove 25 the; periphery of thewheel 14, this groove being arcu'ate in cross section as shown in Figure2,'the "radius ofcurvature of'the groove being substantially equal tothat of the wheel 12. The paste is thus carried around by the wheel tothe beveled periphery 26 of the wheel 12 which acts as a scraper. The'paste thus depositedv on the periphery of the wheel 12 is then carriedaround intqcontact with the upstanding edge of the'cigarette paper 30which, together with the filler 81 of tobacco enclosedzthereby,

lies within and is carried along a recess 34, substantially circularinfcros sl-section, in-a guide35,

Broadly speaking, this. arrangement has been in common use, butfit'hasbeen customary to rotate the wheel- 14 in a clockwise b a directionas'seen in Figurel, the periphery p,

of the wheel 12 being beveled in the opposite direction so as to removethe paste from thewheel l4 and deposit the same on the edge of thecigarette paper 30 in substantially the manner shown in Figure 4 of thedrawing,

it being obvious that the greater portion of the paste will lie adjacentthe extreme outer edge of the cigarette paper as shown in Figure 4:. Byreversing the direction of rotation of the wheel 14 and reversing thedirection of the bevel 26 on the periphery of the wheel 12, I am enabledto apply the paste to the cigarette paper in such manner that thegreater thickness of the layer of pastelies inwardly of the extreme edgeof the paper as shown in Figure 3. It will thus be apparent that 7 whenthe upstanding side of the paper'blank is pressed down upon the otherside, the paste will tend to flow inwardly toward the main body of thepaper and willnot exude appreciably from. between the overlapping edgesof the paper. V It-fi's found in. practice that the application ofthisprinciple results in thevproducti o'n of a cleaner cigarette rod andthat pastin can be effected at much higher speeds with little or nosealingheat and without interruptionof operation for cleaning'thefolding and heating mechanism such ashas been requiredin the past.v I

1 Figure 5 illustrates aslight modification ofthe arrangement shown'inFigure 1, in which the main paste wheel or 1-011er40 is provided with asubstantially cylindrical pastereceiving periphery as distinguished-from the arrangement shown in Figure 1 in which the periphery of themain roller is beveled, In order to provide for the delivery of asubstantially wedge shapedlayer of adhesive to the periphery of thisroller, the

auxiliary roller 42 is mounted to rotate on an axis lying in a planeparallel to but spaced 7 from the plane generallydefined by the rollerroller 42 is rotated in the direction shown by the arrow to remove theadhesive and sup ply it to the cigarette paper 30 adJaCent the edgethereof. V

' It will be noted that in this arrangement as in the .arra ngementshownin Figure 1, the adhesive is applied to the upstanding side of thecigarette paper in such manner that the thinner portion of thesubstantially wedge shaped layer of adhesive carried by the rolleradjacent theextremeedge of the paper. Thus the application of ad hesiveto that portion of the paper adjacent the extreme edge is ensured and atthe same time a suflicient surplus of adhesive is provided and thenecessity of delicately adjusting the paste applying mechanism isthereby eliminated.

It will be understood that the invention is applicable to various typesof adhesive applying apparatus and is not necessarily limited to thatselected herein to illustrate the principles of the invention, suchalterations and change's being contemplated as fallwithin the .spiritandscope of the appended claims. 1

Having thus described the invention, what is claimed as new anddesiredto be secured by Letters Patentis':

1. In paste applyingapparatus for cigarette making machines of thecontinuous rodtype, the combination with a paste container, of asecondary wheel for receiving paste from said container, a main pastewheel for receiving paste from said secondary wheel and depositing the"same on the cigarette 1 paper, said main paste wheel having a bevelledpaste receiving periphery andbeing disposed with the face of smallerdiameter adjacent the cigarette rod.

2. Means for applying adhesivetoa con-a5 tinuous blank adjacent one edgethereof, com prising a roller havinga peripheral surface adapted toreceive adhesive and deposit the same on the blank, and meansforrsupplying a substantially wedge-shaped layer' of ad hesive to theperipheral surface of said roller, said rollerbeingso disposed. withrespect to the blank that the thinner portion of the wedge-shaped layerof adhesive thus deposited lies toward the extreme edgeof the blank. V

3. In apparatus for applying adhesive to one side of a blank adjacentthe edge thereof, thecombination with a main adhesive applying roller',an auxiliary supply roller, said rollers being positioned forrotation'with the peripheral adhesive receiving portions thereof in,proximity, the axis of said auxiliary roller lying in a plane parallelto but spaced from the plane of said main roller and ex-i tending atsubstantially a right angle to a perpendicular from the axis of rotationof the main roller, whereby said auxiliary roller may supply asubstantially wedge-shaped layer of adhesive to said main roller, saidmain roller being so disposed with respect to said blank as to depositthe adhesive thereon with the thinner portion ofthe wedgeshaped layerand adjacent the extreme edge of the blank. s v a a 4:. In apparatus forapplying adhesive to cigarette paper,the combination withmeans disposedin close proximityto the cigarette paper for depositingadhesive'thereomiofmeans for supplying said first named means with aWedge shaped layer of adhesive, said first named means and said paperbeing so positioned that the thinner portion of the Wedge shaped layerof adhesive will lie ad jacent the edge of the pa er.

In testimony whereof hereunto aflix-my signature.

WALTER EVERETT MOLINS.

